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Finding the Fourth Proportional to 836,679.84, 1,154,627.08 and 454,706.60

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Solution

The fourth proportional to 836,679.84, 1,154,627.08 and 454,706.60 is: 627,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,679.84 : 1,154,627.08 = 454,706.60 : x
  2. Step 2: Convert to fraction form
    836,679.84/1,154,627.08 = 454,706.60/x
  3. Step 3: Cross multiply
    836,679.84x = 1,154,627.08 × 454,706.60
  4. Step 4: Simplify right side
    836,679.84x = 525,016,553,814.73
  5. Step 5: Solve for x
    x = 525,016,553,814.73/836,679.84
  6. Step 6: Final answer
    x = 627,499.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.